{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"4bcd8dc5d667","name":"PISTON KIT 13-16 SXF250 78mm B, WOSSNER 8874DB HC KTM","sku":"56-W954.B.WO.HC","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":188.83,"formatted":"£188.83"},"summary":"Wossner forged high-compression piston kit with 78.01mm bore size (77.97mm actual) and 249 cm³ displacement. This kit features a two-ring design with an elliptical profile for balanced thrust load and optimal thermal performance. Manufactured in Germany, it includes a high-compression dome and is built for demanding engine conditions. Specifications include a 52.30 mm stroke, 0.04 mm clearance, 19.50 mm compression height, dome volume of -1.20 cm³, lock part number CW16, pin part number WP070, and ring set part number RIK78.00. Wossner compression ratio is 14.50:1, OEM compression ratio is 13.90:1.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"78.00mm"},{"label":"Variant Id","value":"258390"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W954_2EB_2EWO_2EHC/93b1ad94df66f263.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W954_2EB_2EWO_2EHC/93b1ad94df66f263.jpg"],"description":"Wossner forged high-compression piston kit with 78.01mm bore size (77.97mm actual) and 249 cm³ displacement. This kit features a two-ring design with an elliptical profile for balanced thrust load and optimal thermal performance. Manufactured in Germany, it includes a high-compression dome and is built for demanding engine conditions. Specifications include a 52.30 mm stroke, 0.04 mm clearance, 19.50 mm compression height, dome volume of -1.20 cm³, lock part number CW16, pin part number WP070, and ring set part number RIK78.00. Wossner compression ratio is 14.50:1, OEM compression ratio is 13.90:1.","descriptionMarkdown":"### Wossner 78mm High Compression Piston Kit\n\nThis Wossner forged high-compression piston kit is engineered for enhanced performance in demanding engine conditions. Manufactured in Germany, it features a precisely machined bore size of 78.01mm (actual 77.97mm), offering a +0.01mm oversize option. The advanced two-ring design and elliptical profile work in synergy to ensure balanced thrust load distribution and optimal thermal performance, contributing to efficient combustion and power delivery.\n\n#### Key Features\n\n\t\n- Forged high-compression piston with a two-ring configuration for durability.\n\t\n- Elliptical piston design promotes balanced pressure distribution, especially under thermal expansion.\n\t\n- Optimized for efficient transfer of combustion heat to cylinder walls.\n\t\n- Precision manufactured in Germany for superior quality and reliability.\n\n#### Specifications\n\n\t\n- Bore Size: 78.01mm (actual 77.97mm)\n\t\n- Displacement: 249 cm&sup3;\n\t\n- Stroke: 52.30 mm\n\t\n- Clearance: 0.04 mm\n\t\n- Compression Ratio (Wossner): 14.50:1\n\t\n- Compression Ratio (OEM): 13.90:1\n\t\n- Dome Volume: -1.20 cm&sup3;\n\t\n- Compression Height: 19.50 mm\n\t\n- Lock Part Number: CW16\n\t\n- Pin Part Number: WP070\n\t\n- Ring Set Part Number: RIK78.00","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"EC F 250","cc":null,"notes":null,"years":"2021–2023"},{"make":"HUSABERG","model":"FE 250","cc":null,"notes":null,"years":"2014"},{"make":"HUSQVARNA","model":"FC 250","cc":null,"notes":null,"years":"2014–2015"},{"make":"HUSQVARNA","model":"FE 250","cc":null,"notes":null,"years":"2014–2023"},{"make":"KTM","model":"250 EXC-F","cc":null,"notes":null,"years":"2014–2023"},{"make":"KTM","model":"250 FREERIDE F","cc":null,"notes":null,"years":"2018–2020"},{"make":"KTM","model":"250 FREERIDE R","cc":null,"notes":null,"years":"2018–2020"},{"make":"KTM","model":"250 SX-F","cc":null,"notes":null,"years":"2013–2015"},{"make":"KTM","model":"250 XC-F","cc":null,"notes":null,"years":"2013–2014"},{"make":"KTM","model":"250 XCF-W","cc":null,"notes":null,"years":"2013–2014"}],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Pistons & Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/pistons-kits"}],"links":{"page":"https://www.2brosparts.com/products/piston-kit-13-16-sxf250-78mm-b-wossner-8874db-hc-ktm","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/4bcd8dc5d667:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/4bcd8dc5d667:1"}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. 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Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}